MESON Chess Problem Database
Problem Display
PID: 122128 (5R2/2p5/4p2B/bB2R3/bq2N2K/3N1P2/r3k3/2Q5 w - - 0 1)
Dankiewicz, Jan
Source?, 0000
#2
9 + 7
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Qe1+
- 2.Sg3#
- 1...Qd2
- 2.Sxd2#
- 2.Sc3#
- 2.Sg3#
- 1...Qa3
- 2.Sd2#
- 2.Sef2#
- 2.Sc3#
- 2.Sg3#
- 2.Sec5#
- 2.Sg5#
- 2.Sd6#
- 1...Qc3
- 2.Sxc3#
- 2.Sg3#
- 1...Qc5
- 2.Sc3#
- 2.Sg3#
- 2.Sexc5#
- 1...Qd6
- 2.Sc3#
- 2.Sg3#
- 2.Sxd6#
- 1...Qe7+
- 2.Sg5#
- 1...Qxf8
- 2.Sd2#
- 2.Sg5#
- 1...Qb1
- 2.Sd2#
- 2.Sef2#
- 2.Sc3#
- 2.Sg3#
- 2.Sec5#
- 2.Sg5#
- 2.Sd6#
- 1...Qb2
- 2.Sc3#
- 2.Sg3#
- 1...Qb3
- 2.Sd2#
- 2.Sef2#
- 2.Sc3#
- 2.Sg3#
- 2.Sec5#
- 2.Sg5#
- 2.Sd6#
- 1...Qxe4+
- 2.Rxe4#
- 1...Qxb5
- 2.Sec5#
- 1...Rd2
- 2.Qe1#
- 1...Qe1+
- Tries
- 1.Kg4?
- threat
- 2.Sf4#
- 1...Qxe4+
- 2.Rxe4#
- 1...Qd2
- 2.Sxd2#
- 2.Sc3#
- 2.Sg3#
- 1...Rd2
- 2.Qe1#
- 1...Bd1!
- threat
- 1.Sb2+?
- 1...Qc4
- 2.Bxc4#
- 1...Bxb5
- 2.Qd1#
- 1...Qxb5!
- 1...Qc4
- 1.Sf2+?
- 1...Qc4
- 2.Bxc4#
- 1...Bxb5
- 2.Qd1#
- 1...Qxb5!
- 1...Qc4
- 1.Bc4?
- threat
- 2.Sxb4#
- 2.Sd2#
- 2.Sef2#
- 2.Sc3#
- 2.Sg3#
- 2.Sec5#
- 2.Sg5#
- 2.Sd6#
- 1...Qe1+
- 2.Sxe1#
- 2.Sdf2#
- 2.Sg3#
- 1...Qe7+
- 2.Sg5#
- 1...Qxf8
- 2.Se1#
- 2.Sd2#
- 2.Sg5#
- 1...Bd1
- 2.Sd2#
- 2.Sg3#
- 1...Qd2
- 2.Sxd2#
- 2.Sc3#
- 2.Sg3#
- 1...Qa3
- 2.Sd2#
- 2.Sef2#
- 2.Sc3#
- 2.Sg3#
- 2.Sec5#
- 2.Sg5#
- 2.Sd6#
- 1...Qc3
- 2.Sxc3#
- 2.Sg3#
- 1...Qc5
- 2.Sdxc5#
- 2.Sc3#
- 2.Sg3#
- 2.Sexc5#
- 1...Qd6
- 2.Sc3#
- 2.Sg3#
- 2.Sxd6#
- 1...Qb1
- 2.Sd2#
- 2.Sef2#
- 2.Sc3#
- 2.Sg3#
- 2.Sec5#
- 2.Sg5#
- 2.Sd6#
- 1...Qb2
- 2.Se1#
- 2.Sxb2#
- 2.Sdf2#
- 2.Sb4#
- 2.Sdc5#
- 2.Sc3#
- 2.Sg3#
- 1...Qb3
- 2.Sd2#
- 2.Sef2#
- 2.Sc3#
- 2.Sg3#
- 2.Sec5#
- 2.Sg5#
- 2.Sd6#
- 1...Qb5
- 2.Sc3#
- 2.Sg3#
- 2.Sec5#
- 1...Qb6
- 2.Se1#
- 2.Sb2#
- 2.Sdf2#
- 2.Sb4#
- 2.Sdc5#
- 2.Sc3#
- 2.Sg3#
- 2.Sec5#
- 1...Qb7
- 2.Se1#
- 2.Sb2#
- 2.Sdf2#
- 2.Sb4#
- 2.Sdc5#
- 2.Sc3#
- 2.Sg3#
- 1...Qb8
- 2.Se1#
- 2.Sb2#
- 2.Sdf2#
- 2.Sb4#
- 2.Sdc5#
- 2.Sd2#
- 2.Sef2#
- 2.Sc3#
- 2.Sg3#
- 2.Sec5#
- 2.Sg5#
- 2.Sd6#
- 1...Rc2
- 2.Sd2#
- 2.Sef2#
- 2.Sc3#
- 2.Sg3#
- 2.Sec5#
- 2.Sg5#
- 2.Sd6#
- 1...Rd2
- 2.Sxd2#
- 2.Sef2#
- 2.Sc3#
- 2.Sg3#
- 2.Sec5#
- 2.Sg5#
- 2.Sd6#
- 2.Qe1#
- 1...Ra3
- 2.Sd2#
- 2.Sef2#
- 2.Sc3#
- 2.Sg3#
- 2.Sec5#
- 2.Sg5#
- 2.Sd6#
- 1...Bc2
- 2.Sd2#
- 2.Sef2#
- 2.Sc3#
- 2.Sg3#
- 2.Sec5#
- 2.Sg5#
- 2.Sd6#
- 1...Bb3
- 2.Sd2#
- 2.Sef2#
- 2.Sc3#
- 2.Sg3#
- 2.Sec5#
- 2.Sg5#
- 2.Sd6#
- 1...Bb5
- 2.Sd2#
- 2.Sef2#
- 2.Sc3#
- 2.Sg3#
- 2.Sec5#
- 2.Sg5#
- 2.Sd6#
- 1...Bc6
- 2.Sxb4#
- 2.Sc3#
- 2.Sg3#
- 1...Bb6
- 2.Sxb4#
- 2.Sc3#
- 2.Sg3#
- 2.Sec5#
- 1...c5
- 2.Sxb4#
- 2.Sd2#
- 2.Sef2#
- 2.Sc3#
- 2.Sg3#
- 2.Sexc5#
- 2.Sg5#
- 2.Sd6#
- 1...Qxc4!
- threat
- 1.Qg1?
- threat
- 2.Sc1#
- 1...Qe1+
- 2.Sef2#
- 1...Qxe4+
- 2.Rxe4#
- 1...Qxf8
- 2.Sd2#
- 1...Qe7+!
- threat
- 1.Kg4?
- Keys
- 1.Qh1!
- threat
- 2.Sc1#
- 1...Qe1+
- 2.Sef2#
- 1...Qe7+
- 2.Sf6#
- 1...Qxe4+
- 2.Rxe4#
- threat
- 1.Qh1!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 2
- ADDED MATES = 0
- REMOVED MATES = 2
- Sets
- Q(d);CHECK,N_PINS(D)::R(G)+S(D),DCHECK
- Q(d);CHECK,N_PINS(D)::R(G)+S(D)
- Q(d);CHECK,OGATE,P_SPINQ(d),XS(D)::R(G),XQ(d)
- Q(d);N_PINS(D),XB(F)::R(G)+S(D)
- R(a);S_CUTQ(d)::QAR1(A)
- Tries
- Try
- K(E);P-FLIGHT
- Threat
- B(F)+S(B),DCHECK
- Vars
- Q(d);CHECK,OGATE,P_SPINQ(d),XS(D)::R(G),XQ(d)
- R(a);S_CUTQ(d)::QAR1(A)
- Refutation
- B(c);
- Try
- S(B);CHECK
- Vars
- Q(d);N_GUARD,P_SPINQ(d)::B(F),XQ(d)
- B(c);XB(F)::QAB1(A)
- Refutation
- Q(d);N_PINS(D),XB(F)
- Try
- S(B);CHECK
- Vars
- Q(d);N_GUARD,P_SPINQ(d)::B(F),XQ(d)
- B(c);XB(F)::QAB1(A)
- Refutation
- Q(d);N_PINS(D),XB(F)
- Try
- B(F);N_SPINS(D)
- Threat
- DUALS(8)
- Vars
- Q(d);CHECK::R(G)+S(D)
- Refutation
- Q(d);P_PINS(D),XB(F)
- Try
- Q(A);
- Threat
- B(F)+S(B),DCHECK
- Vars
- Q(d);CHECK,N_PINS(D)::R(G)+S(D)
- Q(d);CHECK,OGATE,P_SPINQ(d),XS(D)::R(G),XQ(d)
- Q(d);N_PINS(D),XR(I)::R(G)+S(D)
- Refutation
- Q(d);CHECK,N_PINS(D)
- Try
- Actual
- Q(A);
- Threat
- B(F)+S(B),DCHECK
- Vars
- Q(d);CHECK,N_PINS(D)::R(G)+S(D)
- Q(d);CHECK,OGATE,P_SPINQ(d),XS(D)::R(G),XQ(d)
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
CSS/Javascript (jQuery, Bootstrap & DataTables).